I have 10th edition. My PC 1.5G MB and 200GB hardrive. I close all programs and put Webroot in game mode. Still every game eventually freezes. I have to shut down my computer and retstart it; having no game to go back to to finish. It is driving me crazy. I read about this problem on multiple sites, can nothing be done?

Well, you haven't given much information to go on, but I assume you've read the Chessmaster 10th Edition FAQ and tried the various suggestions?

To start with:

Make sure your OS has all the latest updates
(what OS are you using, anyway?)

Make you have the latest sound card/video card drivers installed for your system.

Make sure you have the latest updates for Chessmaster installed (available from the Chessmaster 10th Edition Downloads)

after that, if you still have problems, try the following:

Make sure you run as few programs as possible while playing Chessmaster. The more background programs you have loaded in Windows, the less processing power your system will have to make moves within the game.

Use as few child windows as possible. Some of the windows that open within the game can take up a decent amount of CPU time due to either their visual updates or because they might cause a mentor engine instance to be launched.

Do not activate the blunder alert feature in the Training Mode. This feature will also launch a mentor engine instance to watch your game.

Do not switch to other game modes, or access other game features or dialogs while running a game, and try to avoid adjusting game settings in the middle of the game. Some of these features/dialogs will actually restart any chess engines that may be associated with the current game, causing that memory that these engines has allocated to be destroyed.

In the "Piece Movement" tab of the Sound dialog, select "No Sounds." This will prevent the program from taking up a significant portion of time queuing up and playing piece movement sounds.

Change the priority of the engine. Go to the Preferences menu and select 'Engine'. From there you can adjust the resources of the Chess Engine and Blunder Alert Threshold, as well as set the priority of the Chess Engine and Blunder Alert.

Also, I'm not familiar with Webroot, but you might try turning it off (instead of putting it in Game mode) and see if that helps.